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1 | #include "../rsync.h" |
2 | #ifndef HAVE_FNMATCH | |
3 | ||
4 | /* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc. | |
5 | ||
6 | NOTE: The canonical source of this file is maintained with the GNU C Library. | |
7 | Bugs can be reported to bug-glibc@prep.ai.mit.edu. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU General Public License as published by the | |
11 | Free Software Foundation; either version 2, or (at your option) any | |
12 | later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
22 | ||
23 | #if defined (STDC_HEADERS) || !defined (isascii) | |
24 | #define ISASCII(c) 1 | |
25 | #else | |
26 | #define ISASCII(c) isascii(c) | |
27 | #endif | |
28 | ||
29 | #define ISUPPER(c) (ISASCII (c) && isupper (c)) | |
30 | ||
31 | ||
32 | /* Comment out all this code if we are using the GNU C Library, and are not | |
33 | actually compiling the library itself. This code is part of the GNU C | |
34 | Library, but also included in many other GNU distributions. Compiling | |
35 | and linking in this code is a waste when using the GNU C library | |
36 | (especially if it is a shared library). Rather than having every GNU | |
37 | program understand `configure --with-gnu-libc' and omit the object files, | |
38 | it is simpler to just do this in the source for each such file. */ | |
39 | ||
40 | #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS) | |
41 | extern int errno; | |
42 | #endif | |
43 | ||
44 | /* Match STRING against the filename pattern PATTERN, returning zero if | |
45 | it matches, nonzero if not. */ | |
46 | int | |
47 | fnmatch (pattern, string, flags) | |
48 | const char *pattern; | |
49 | const char *string; | |
50 | int flags; | |
51 | { | |
52 | register const char *p = pattern, *n = string; | |
53 | register char c; | |
54 | ||
55 | /* Note that this evalutes C many times. */ | |
56 | #define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c)) | |
57 | ||
58 | while ((c = *p++) != '\0') | |
59 | { | |
60 | c = FOLD (c); | |
61 | ||
62 | switch (c) | |
63 | { | |
64 | case '?': | |
65 | if (*n == '\0') | |
66 | return FNM_NOMATCH; | |
67 | else if ((flags & FNM_FILE_NAME) && *n == '/') | |
68 | return FNM_NOMATCH; | |
69 | else if ((flags & FNM_PERIOD) && *n == '.' && | |
70 | (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) | |
71 | return FNM_NOMATCH; | |
72 | break; | |
73 | ||
74 | case '\\': | |
75 | if (!(flags & FNM_NOESCAPE)) | |
76 | { | |
77 | c = *p++; | |
78 | c = FOLD (c); | |
79 | } | |
80 | if (FOLD (*n) != c) | |
81 | return FNM_NOMATCH; | |
82 | break; | |
83 | ||
84 | case '*': | |
85 | if ((flags & FNM_PERIOD) && *n == '.' && | |
86 | (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) | |
87 | return FNM_NOMATCH; | |
88 | ||
89 | for (c = *p++; c == '?' || c == '*'; c = *p++, ++n) | |
90 | if (((flags & FNM_FILE_NAME) && *n == '/') || | |
91 | (c == '?' && *n == '\0')) | |
92 | return FNM_NOMATCH; | |
93 | ||
94 | if (c == '\0') | |
95 | return 0; | |
96 | ||
97 | { | |
98 | char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c; | |
99 | c1 = FOLD (c1); | |
100 | for (--p; *n != '\0'; ++n) | |
101 | if ((c == '[' || FOLD (*n) == c1) && | |
102 | fnmatch (p, n, flags & ~FNM_PERIOD) == 0) | |
103 | return 0; | |
104 | return FNM_NOMATCH; | |
105 | } | |
106 | ||
107 | case '[': | |
108 | { | |
109 | /* Nonzero if the sense of the character class is inverted. */ | |
110 | register int not; | |
111 | ||
112 | if (*n == '\0') | |
113 | return FNM_NOMATCH; | |
114 | ||
115 | if ((flags & FNM_PERIOD) && *n == '.' && | |
116 | (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) | |
117 | return FNM_NOMATCH; | |
118 | ||
119 | not = (*p == '!' || *p == '^'); | |
120 | if (not) | |
121 | ++p; | |
122 | ||
123 | c = *p++; | |
124 | for (;;) | |
125 | { | |
126 | register char cstart = c, cend = c; | |
127 | ||
128 | if (!(flags & FNM_NOESCAPE) && c == '\\') | |
129 | cstart = cend = *p++; | |
130 | ||
131 | cstart = cend = FOLD (cstart); | |
132 | ||
133 | if (c == '\0') | |
134 | /* [ (unterminated) loses. */ | |
135 | return FNM_NOMATCH; | |
136 | ||
137 | c = *p++; | |
138 | c = FOLD (c); | |
139 | ||
140 | if ((flags & FNM_FILE_NAME) && c == '/') | |
141 | /* [/] can never match. */ | |
142 | return FNM_NOMATCH; | |
143 | ||
144 | if (c == '-' && *p != ']') | |
145 | { | |
146 | cend = *p++; | |
147 | if (!(flags & FNM_NOESCAPE) && cend == '\\') | |
148 | cend = *p++; | |
149 | if (cend == '\0') | |
150 | return FNM_NOMATCH; | |
151 | cend = FOLD (cend); | |
152 | ||
153 | c = *p++; | |
154 | } | |
155 | ||
156 | if (FOLD (*n) >= cstart && FOLD (*n) <= cend) | |
157 | goto matched; | |
158 | ||
159 | if (c == ']') | |
160 | break; | |
161 | } | |
162 | if (!not) | |
163 | return FNM_NOMATCH; | |
164 | break; | |
165 | ||
166 | matched:; | |
167 | /* Skip the rest of the [...] that already matched. */ | |
168 | while (c != ']') | |
169 | { | |
170 | if (c == '\0') | |
171 | /* [... (unterminated) loses. */ | |
172 | return FNM_NOMATCH; | |
173 | ||
174 | c = *p++; | |
175 | if (!(flags & FNM_NOESCAPE) && c == '\\') | |
176 | /* XXX 1003.2d11 is unclear if this is right. */ | |
177 | ++p; | |
178 | } | |
179 | if (not) | |
180 | return FNM_NOMATCH; | |
181 | } | |
182 | break; | |
183 | ||
184 | default: | |
185 | if (c != FOLD (*n)) | |
186 | return FNM_NOMATCH; | |
187 | } | |
188 | ||
189 | ++n; | |
190 | } | |
191 | ||
192 | if (*n == '\0') | |
193 | return 0; | |
194 | ||
195 | if ((flags & FNM_LEADING_DIR) && *n == '/') | |
196 | /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */ | |
197 | return 0; | |
198 | ||
199 | return FNM_NOMATCH; | |
200 | } | |
201 | ||
202 | #else /* HAVE_FNMATCH */ | |
203 | void fnmatch_dummy(void) {} | |
204 | #endif |